Preliminary Design of a Ka-Band, Three-Stage, Harmonic-Multiplying Gyrotron Traveling Wave Amplifier

Author

Jiao, Chong-Qing ; Luo, Ji-Run

Author_Institution

Inst. of Electron., Chinese Acad. of Sci.

fYear

0

fDate

0-0 0

Firstpage

265

Lastpage

266

Abstract

The preliminary design result of a ka-band, harmonic multiplying gyro-TWT with three-stage interaction circuits is presented. The first stage is coated with distributed loss to suppress the absolute instability and the lengths of the other two stages are limited below the critical length of the corresponding gyro-BWO. A saturated peak power of 540kW with an efficiency of 21.6%, a gain of 58dB, and a 3dB bandwidth of 4.5% is predicted for the gyro-TWT driven by 100kV, 25A electron beam with a pitch angle of 1.0 and a velocity spread of 5%

Keywords

backward wave oscillators; electron beams; gyrotrons; microwave amplifiers; travelling wave amplifiers; 100 kV; 25 A; 540 kW; 58 dB; Ka-band; electron beam; gyro-BWO; gyrotron traveling wave amplifier; three-stage interaction circuits; Bandwidth; Circuit stability; Electron beams; Frequency; Gyrotrons; High power amplifiers; Magnetic fields; Power amplifiers; Power generation; Voltage; gyro-twt; harmonic multiplying; ka-band;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International

Conference_Location

Monterey, CA

Print_ISBN

1-4244-0108-9

Type

conf

DOI

10.1109/IVELEC.2006.1666286

Filename

1666286